Question

if ∅ is an acute angle and sin∅=cos∅ find the value of 2tan∅²+sin∅²-1 ​

Answer 1

Given : sinθ = cosθ

It means θ = 45°

Now,

2tan²θ + sin²θ - 1

= 2tan²45 + sin²45 - 1

= 2×1² + (1/2) -1

= 2 + 1/2 - 1

= 3/2

Answer 2

Step-by-step explanation:

I hope it will help you

thanks for the point